| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.94 | -0.19 |
| Feb | 0.79 | 0.88 | -0.09 |
| Mar | 1.61 | 1.69 | -0.08 |
| Apr | 2.89 | 3.12 | -0.23 |
| May | 4.17 | 4.28 | -0.11 |
| Jun | 4.49 | 4.65 | -0.16 |
| Jul | 4.21 | 4.42 | -0.21 |
| Aug | 4.47 | 4.28 | 0.19 |
| Sep | 3.31 | 3.32 | -0.01 |
| Oct | 2.77 | 2.84 | -0.07 |
| Nov | 1.58 | 1.70 | -0.12 |
| Dec | 1.06 | 1.28 | -0.22 |
32.10 | 33.40 | -1.30 |